A V2X scene display circuit applied to a commercial vehicle

Abstract

This application proposes a V2X scene display circuit for commercial vehicles. Belonging to the field of commercial vehicle auxiliary equipment, the circuit includes a signal receiving unit for receiving V2X information from outside the vehicle; a display screen control unit electrically connected to the signal receiving unit for receiving and processing the information transmitted by the signal receiving unit, converting the processed information into a format suitable for display on the display screen unit; a display screen unit electrically connected to the display screen control unit for presenting V2X application scene information; and a voice unit electrically connected to the display screen control unit for receiving road traffic information transmitted by the display screen control unit and providing voice prompts. Effective voice-assisted prompts can be used to coordinate information transmission.

Description

Technical Field

[0001] This application relates to the field of auxiliary equipment for commercial vehicles, and more specifically, to a V2X scene display circuit for use in commercial vehicles. Background Technology

[0002] With the continuous development of intelligent transportation technology, the demand for information interaction between vehicles and the outside world is increasing in the commercial vehicle sector. V2X technology covers communication between vehicles (V2V), between vehicles and infrastructure (V2I), between vehicles and people (V2P), and between vehicles and networks (V2N). It can provide commercial vehicles with rich road traffic information, such as the driving status of vehicles ahead, the status of traffic lights at intersections, and road construction conditions, which is of great significance for improving the driving safety of commercial vehicles and optimizing transportation efficiency.

[0003] Currently, commercial vehicles acquire V2X information in a fragmented manner, often requiring drivers to simultaneously monitor multiple devices or interfaces to receive various types of information. This results in low information integration, hindering drivers from quickly and accurately obtaining crucial information. Furthermore, existing information prompts are primarily visual displays, which can lead to drivers overlooking important information due to excessive visual strain in complex road conditions. There is also a lack of effective voice-assisted prompts to coordinate information delivery. Utility Model Content

[0004] The purpose of this application is to provide a V2X scene display circuit for commercial vehicles, which can coordinate information transmission through effective voice-assisted prompts.

[0005] This application is implemented as follows:

[0006] In a first aspect, this application provides a V2X scene display circuit for commercial vehicles, comprising:

[0007] A signal receiving unit is used to receive V2X information from outside the vehicle;

[0008] The display control unit is electrically connected to the signal receiving unit. It receives and processes the information transmitted by the signal receiving unit and converts the processed information into a format suitable for display on the display unit.

[0009] The display unit, which is electrically connected to the display control unit, is used to present V2X application scenario information;

[0010] The voice unit, which is electrically connected to the display control unit, is used to receive road traffic information transmitted by the display control unit and provide voice prompts.

[0011] Based on the first aspect, it also includes a data storage unit, which is electrically connected to the display control unit and is used to store historical information received by the signal receiving unit and related data processed by the display control unit.

[0012] Based on the first aspect, the display control unit includes an STM32G0B1CBT chip. The XTAL0_16M pin of the STM32G0B1CBT chip is connected to pin 1 of crystal oscillator Y1 via resistor OR. The XTAL1_16M pin is connected to pin 3 of crystal oscillator Y1. Pin 1 of crystal oscillator Y1 is grounded via capacitor C158. Pin 3 of crystal oscillator Y1 is grounded via capacitor C159. Pins 2 and 4 of crystal oscillator Y1 are directly grounded. Resistor R181 is connected between pins 1 and 3 of crystal oscillator Y1.

[0013] The OSC32_IN and OSC32_OUT pins of the STM32G0B1CBT chip are connected to pins 2 and 1 of crystal oscillator Y4, respectively. Pin 2 of crystal oscillator Y4 is grounded through capacitor C289, and pin 1 of crystal oscillator Y4 is grounded through capacitor C290.

[0014] The MCU_PA_PWR_EN pin of the STM32G0B1CBT chip is connected to the base of transistor Q21 via resistor R379. The base of transistor Q21 is grounded via resistor R380, and the emitter is grounded. The collector is connected to the gate of MOSFET Q20 via resistor R484. The source of MOSFET Q20 is connected to the power supply via ferrite bead FB37, and is also grounded via capacitor C459. The drain is connected to the power supply, and is also grounded via capacitors C457 and C458. Resistor R378 is connected between the gate and the drain. Resistor R378 is connected in parallel with capacitor C399. Resistor R377 is connected between the source and the drain.

[0015] Based on the first aspect, the signal receiving unit includes MOSFET Q22 and MOSFET Q2. The drain of MOSFET Q22 is connected to the drain of MOSFET Q2 via Schottky diode D8. The gate of MOSFET Q22 is grounded via resistor R431. A capacitor C415 is connected between the source and the gate, and a resistor R428 is connected in parallel with capacitor C415. The source of MOSFET Q22 is also connected to one end of resistor R483 via resistor R350. The gate of MOSFET Q2 is connected to resistor R4... 29. Resistor R432 is grounded. The common terminal of resistors R429 and R432 is connected to the power supply terminal via resistor R430. The source of MOSFET Q2 is connected to one end of resistor R483 via resistor R351. The other end of resistor R483 is connected to the power supply terminal via resistors R300 and R302. The common terminal of resistors R300 and R302 is grounded via resistor R432. Resistors R300 and R301 form a voltage divider circuit for ADC sampling by the subsequent display control unit.

[0016] Based on the first aspect, the display unit includes a TPS65140 chip. The VIN pin of the TPS65140 chip is grounded via capacitor C480. Capacitor C47 is connected in parallel with capacitor C480. The EN pin and ENR pin are connected to the power supply via resistors R564 and R565, respectively. Capacitor C81 is connected between the C1+ pin and the C1- pin. The DRV pin is connected to pin 3 of Schottky diode D27 via capacitor C482. Pin 1 of Schottky diode D27... Pin 1 is grounded via capacitor C484. Pin 2 is grounded via resistors R569 and R570 and capacitor C485. Pin FB2 of the TPS65140 chip is connected to the common terminal of resistors R569 and R570. Pin REF is connected to the common terminal of resistor R570 and capacitor C485. Pin COMP is grounded via resistor R571 and capacitor C486. Inductor L19 is connected between pin VIN and pin SW. Pin SW is also connected via Schottky diode D28. One end of resistor R574 is connected to ground via resistor R575. The common terminal of resistors R574 and R575 is connected to the power supply. Resistor R575 is connected in parallel with capacitor C490. Schottky diode D28 is also connected to one end of capacitors C489, C572, C48, and C488. The other ends of capacitors C489, R572, C48, and C488 are grounded. The other end of resistor R572 is grounded via resistor R573. The FB1 pin is connected to the common terminal of resistors R572 and R573. The SUP pin is connected to the output terminal of Schottky diode D28. A capacitor C483 is connected between the C2+ pin and the C2-MODE pin. The OUT3 pin is connected to one end of resistor R566 and capacitor C491. The other end of resistor R566 is grounded through resistor R567. The other end of capacitor C491 is grounded. The FB3 pin is connected between resistors R566 and R567. The PG pin is connected to the power supply terminal.

[0017] Based on the first aspect, the voice unit includes an HT8693 chip. The ABD pin of the HT8693 chip is connected to the MCU_ABD pin of the STM32G0B1CBT chip via resistor R413. The ABD pin is also grounded via resistor R422. The CTRL pin is grounded via resistor R325. The OUT+ pin is connected to the VDD pin via resistor R411 and diode D21. The OUT- pin is connected to the power supply via resistor R412 and diode D22. The outputs of diodes D21 and D22 are also grounded via capacitor C454. Capacitor C454 is connected in parallel with capacitors C455 and C456. The OUT+ pin is also grounded via resistor R411 and capacitor C260. The OUT- pin is also grounded via resistor R412 and... Capacitor C259 is grounded. The VDD pin is connected to the drain of MOSFET Q20 via ferrite bead FB37. The gate of MOSFET Q20 is connected to the collector of transistor Q21 via resistor R484. The emitter of transistor Q21 is grounded, and the collector is connected to the MCU_PA_PWR_EN pin of the STM32G0B1CBT chip via resistor R379. The source of MOSFET Q20 is connected to the power supply. The source of MOSFET Q20 is also grounded via capacitors C457 and C458. Resistor R377 is connected between the source and drain of MOSFET Q20, and resistor R378 is connected between the source and gate. Resistor R378 is connected in parallel with capacitor C399. The common terminal of MOSFET Q20 and ferrite bead FB37 is grounded via capacitor C459.

[0018] Compared with the prior art, this application has at least the following advantages or beneficial effects:

[0019] This application provides a V2X scene display circuit for commercial vehicles, which can provide timely voice prompts when important road traffic information appears, complementing the information displayed on the screen. This reduces the driver's visual burden in complex road conditions, ensuring the driver does not miss key information and further improving driving safety. Voice prompts avoid the driver being distracted by checking multiple devices, improving the efficiency and accuracy of information acquisition and contributing to enhanced driving safety in commercial vehicles. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a V2X scene display circuit applied to commercial vehicles according to this application;

[0022] Figure 2A This is a partial circuit schematic of a signal receiving unit in a V2X scene display circuit for commercial vehicles according to this application;

[0023] Figure 2B This is a circuit schematic diagram of another part of the signal receiving unit in a V2X scene display circuit for commercial vehicles according to this application;

[0024] Figure 3A This is a circuit schematic diagram of a portion of the display control unit in a V2X scene display circuit applied to commercial vehicles according to this application;

[0025] Figure 3B This is a circuit schematic diagram of another part of the display control unit in a V2X scene display circuit applied to commercial vehicles according to this application;

[0026] Figure 4 This is a circuit schematic diagram of a display screen unit in a V2X scene display circuit for commercial vehicles according to this application;

[0027] Figure 5A This is a circuit schematic diagram of a portion of the voice unit in a V2X scene display circuit applied to commercial vehicles according to this application;

[0028] Figure 5B This is a circuit schematic diagram of another part of the voice unit in a V2X scene display circuit applied to commercial vehicles according to this application.

[0029] Icons: 1. Signal receiving unit; 2. Display screen control unit; 3. Display screen unit; 4. Voice unit; 5. Data storage unit. Detailed Implementation

[0030] 1. Signal receiving unit 1; 2. Display screen control unit 2; 3. Display screen unit 3; 4. Voice unit 4; 5. Data storage unit 5.

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the various embodiments and features described below can be combined with each other.

[0033] Example

[0034] This application provides a V2X scene display circuit for commercial vehicles, which can coordinate information transmission through effective voice-assisted prompts.

[0035] Please refer to Figure 1 The V2X scene display circuit for commercial vehicles includes a signal receiving unit 1, a display control unit 2, a display unit 3, and a voice unit 4, wherein:

[0036] Signal receiving unit 1 is used to receive V2X information from outside the vehicle;

[0037] Specifically, when a commercial vehicle is driving on urban roads, the signal receiving unit 1 receives real-time traffic information and traffic light status information at the intersection ahead from the traffic management center (V2I) via wireless communication (such as 5G communication); it also communicates with nearby vehicles (V2V) through a V2X module to obtain information such as the speed and distance of the vehicles ahead. Furthermore, the signal receiving unit 1 also has Bluetooth and Wi-Fi communication capabilities.

[0038] Please refer to Figure 2A and Figure 2B , Figure 2A This is a partial circuit schematic of signal receiving unit 1; Figure 2B This is a circuit schematic diagram of another part of the signal receiving unit 1. Specifically, as one structure of the signal receiving unit 1, the signal receiving unit 1 includes MOSFET Q22 and MOSFET Q2. The drain of MOSFET Q22 is connected to the drain of MOSFET Q2 via Schottky diode D8. The gate of MOSFET Q22 is grounded via resistor R431. A capacitor C415 is connected between the source and the gate. A resistor R428 is connected in parallel with the capacitor C415. The source of MOSFET Q22 is also connected to one end of resistor R483 via resistor R350. The gate of the MOS transistor Q2 is connected to ground via resistors R429 and R432. The common terminal of resistors R429 and R432 is connected to the power supply via resistor R430. The source of the MOS transistor Q2 is connected to one end of resistor R483 via resistor R351. The other end of resistor R483 is connected to the power supply via resistors R300 and R302. The common terminal of resistors R300 and R302 is connected to ground via resistor R432. Resistors R300 and R301 form a voltage divider circuit for ADC sampling by the subsequent display control unit 2.

[0039] With this setup, resistors R300 and R301 form a voltage divider circuit, which is used by the subsequent display control unit 2 for ADC sampling. The signal receiving unit 1 can acquire data from two external ADCs, with a voltage range of 0-16V and an accuracy of ±0.1V.

[0040] The display control unit 2 is electrically connected to the signal receiving unit 1 and is used to receive and process the information transmitted by the signal receiving unit 1, and convert the processed information into a format suitable for display by the display unit 3.

[0041] Specifically, the display control unit uses a high-performance processor and graphics processing chip. When the V signal receiving unit 1 receives information, it transmits the data to the display control unit. The display control unit parses the information, and the graphics processing chip converts the parsed information into an intuitive graphic image format, such as converting the traffic light status information at the intersection ahead into the corresponding traffic light graphic display on the display unit 3.

[0042] Please refer to Figure 3A and Figure 3B , Figure 3A This is a circuit schematic diagram of a portion of the display control unit 2; it represents one type of structure for the display control unit. Figure 3B This is another part of the circuit schematic of the display control unit 2; specifically, the display control unit 2 includes an STM32G0B1CBT chip. The XTAL0_16M pin of the STM32G0B1CBT chip is connected to pin 1 of crystal oscillator Y1 through a resistor OR. The XTAL1_16M pin is connected to pin 3 of crystal oscillator Y1. Pin 1 of crystal oscillator Y1 is grounded through capacitor C158. Pin 3 of crystal oscillator Y1 is grounded through capacitor C159. Pins 2 and 4 of crystal oscillator Y1 are directly grounded. A resistor R181 is connected between pins 1 and 3 of crystal oscillator Y1.

[0043] The OSC32_IN and OSC32_OUT pins of the STM32G0B1CBT chip are connected to pins 2 and 1 of crystal oscillator Y4, respectively. Pin 2 of crystal oscillator Y4 is grounded through capacitor C289, and pin 1 of crystal oscillator Y4 is grounded through capacitor C290.

[0044] The MCU_PA_PWR_EN pin of the STM32G0B1CBT chip is connected to the base of transistor Q21 via resistor R379. The base of transistor Q21 is grounded via resistor R380, and the emitter is grounded. The collector is connected to the gate of MOSFET Q20 via resistor R484. The source of MOSFET Q20 is connected to the power supply via ferrite bead FB37, and is also grounded via capacitor C459. The drain is connected to the power supply, and is also grounded via capacitors C457 and C458. Resistor R378 is connected between the gate and the drain. Resistor R378 is connected in parallel with capacitor C399. Resistor R377 is connected between the source and the drain.

[0045] The STM32G0B1CBT chip has three sleep modes: HALT mode, STOP mode, and STANDBY mode, with corresponding power consumption of 28mA, 14mA, and 1.7mA, respectively. This design uses standby mode, where the MCU power consumption is approximately 1.7mA, having a minimal impact on the overall power consumption.

[0046] Preferred crystal sources for the STM32G0B1CBT chip are 16MHz and 32.768kHz. The 16MHz crystal has an accuracy of 15PPM and a load capacitance of 8pF, while the 32.768kHz crystal has an accuracy of 20PPM and a load capacitance of 12.5pF. Based on the load capacitance, the required matching capacitor values ​​are calculated as follows: 8.2pF for the 16MHz crystal and 15pF for the 32.768kHz crystal.

[0047] Display unit 3, which is electrically connected to display control unit 2, is used to display V2X application scenario information;

[0048] Specifically, display unit 3 uses a 10-inch high-brightness, high-contrast LCD screen with a horizontal viewing angle of 175° and a vertical viewing angle of 165°. In outdoor environments with direct sunlight, the high brightness of the display screen ensures that the driver can clearly see the displayed V2X application scenario information, such as road construction signs and the location information of nearby pedestrians.

[0049] Please refer to Figure 4 , Figure 4This is a circuit schematic of display unit 3. As one structure of the display control unit, specifically, display unit 3 includes a TPS65140 chip. The VIN pin of the TPS65140 chip is grounded via capacitor C480. Capacitor C47 is connected in parallel with capacitor C480. The EN and ENR pins are connected to the power supply via resistors R564 and R565 respectively. Capacitor C81 is connected between pins C1+ and C1-. The DRV pin is connected to a Schottky diode via capacitor C482. Pin 3 of transistor D27; pin 1 of Schottky diode D27 is grounded via capacitor C484; pin 2 is grounded via resistors R569 and R570 and capacitor C485; pin FB2 of TPS65140 chip is connected to the common terminal of resistors R569 and R570; pin REF is connected to the common terminal of resistor R570 and capacitor C485; pin COMP is grounded via resistor R571 and capacitor C486; inductor L19 is connected between pin VIN and pin SW; pin SW... The circuit also connects to one end of resistor R574 via Schottky diode D28. The other end of resistor R574 is grounded via resistor R575. The common terminal of resistors R574 and R575 is connected to the power supply. Resistor R575 is connected in parallel with capacitor C490. Schottky diode D28 is also connected to one end of capacitor C489, resistor C572, capacitor C48, and capacitor C488. The other ends of capacitors C489, R572, C48, and C488 are grounded. The other end of resistor R572 is connected to resistor R575 via... R573 is grounded. The FB1 pin is connected to the common terminal of resistors R572 and R573. The SUP pin is connected to the output terminal of Schottky diode D28. A capacitor C483 is connected between the C2+ pin and the C2-MODE pin. The OUT3 pin is connected to one end of resistor R566 and capacitor C491. The other end of resistor R566 is grounded through resistor R567. The other end of capacitor C491 is grounded. The FB3 pin is connected between resistors R566 and R567. The PG pin is connected to the power supply terminal.

[0050] The TPS65140 chip is powered by 5V. R569 and R570 are used as FB modulation voltage divider resistors in the circuit. After debugging and calculation, the resistances of R569 and R570 are 750K and 100K respectively. PIN13 is used as the circuit output, and test point TP65 is added as the debugging point.

[0051] Voice unit 4, which is electrically connected to display control unit 2, is used to receive road traffic information transmitted by display control unit 2 and provide voice prompts.

[0052] Specifically, the voice synthesis chip in voice unit 4 converts important text information from the display control unit into speech, which is then played through a speaker installed near the driver's seat. For example, when signal receiving unit 1 receives information about severe traffic congestion ahead, voice unit 4 will promptly remind the driver, "The road ahead is congested; please plan your route in advance," and the volume will automatically adjust to a suitable level based on the noise level in the cabin.

[0053] Please refer to Figure 5A and Figure 5B , Figure 5A This is a partial circuit diagram of voice unit 4. Figure 5B This is another part of the circuit schematic for voice unit 4. As one structure of the display voice unit 4, voice unit 4 includes an HT8693 chip. The ABD pin of the HT8693 chip is connected to the MCU_ABD pin of the STM32G0B1CBT chip via resistor R413. The ABD pin is also grounded via resistor R422. The CTRL pin is grounded via resistor R325. The OUT+ pin is connected to the VDD pin via resistor R411 and diode D21. The OUT- pin is connected to the power supply via resistor R412 and diode D22. The outputs of diodes D21 and D22 are also grounded via capacitor C454. Capacitor C454 is connected in parallel with capacitors C455 and C456. The OUT+ pin is also grounded via resistor R411 and capacitor C260. The OUT- pin is connected via resistor R... After 412, it is grounded via capacitor C259. The VDD pin is connected to the drain of MOSFET Q20 via ferrite bead FB37. The gate of MOSFET Q20 is connected to the collector of transistor Q21 via resistor R484. The emitter of transistor Q21 is grounded, and the collector is connected to the MCU_PA_PWR_EN pin of the STM32G0B1CBT chip via resistor R379. The source of MOSFET Q20 is connected to the power supply. The source of MOSFET Q20 is also grounded via capacitors C457 and C458. Resistor R377 is connected between the source and drain of MOSFET Q20, and resistor R378 is connected between the source and gate. Resistor R378 is connected in parallel with capacitor C399. The common terminal of MOSFET Q20 and ferrite bead FB37 is grounded via capacitor C459. An audio power amplifier with Class D and Class AB operating modes is configured using the HT8693 chip. In Class D mode, with VDD=8.5V, THD+N=10%, and a 4Ω load, it can continuously output 10W of power; in Class AB mode, with VDD=8.5V, THD+N=10%, and a 4Ω load, it can continuously output 9W of power.

[0054] Based on the first aspect, it also includes a data storage unit 5, which is electrically connected to the display control unit 2 and is used to store historical information received by the signal receiving unit 1 and related data processed by the display control unit 2.

[0055] Specifically, data storage unit 5 uses a 256GB solid-state drive to store historical information received by signal receiving unit 1 and related data processed by the display control unit. After a vehicle completes a transportation task, the transportation company can read the data in data storage unit 5 to analyze the traffic conditions encountered during the vehicle's journey and optimize subsequent transportation routes. The setup of data storage unit 5 facilitates retrospective analysis of historical traffic information, provides data support for vehicle operation management, helps optimize transportation routes, reduce operating costs, and improve the overall operational efficiency of commercial vehicles.

[0056] This embodiment also provides a V2X scene display device for commercial vehicles, including a housing and all or part of the above-mentioned circuits disposed within the housing.

[0057] Specifically, the housing is made of high-strength, high-temperature resistant engineering plastic with good electromagnetic shielding properties, and the surface has an anti-slip texture. Even when encountering severe vibrations and high-temperature environments during commercial vehicle operation, the terminal equipment can operate stably and is unaffected by external electromagnetic interference. The housing also features a thermally conductive pad with a thermal conductivity K of 3 to conduct heat to the chip. If the height is insufficient, protrusions are added to the housing to transfer the chip's heat to the casing for heat dissipation through thermal conduction.

[0058] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A V2X scenario display circuit applied to a commercial vehicle, characterized in that, include: A signal receiving unit is used to receive V2X information from outside the vehicle; The display control unit is electrically connected to the signal receiving unit. It receives and processes the information transmitted by the signal receiving unit and converts the processed information into a format suitable for display on the display unit. The display unit, which is electrically connected to the display control unit, is used to present V2X application scenario information; The voice unit, which is electrically connected to the display control unit, is used to receive road traffic information transmitted by the display control unit and provide voice prompts. The display control unit includes an STM32G0B1CBT chip. The XTAL0_16M pin of the STM32G0B1CBT chip is connected to pin 1 of crystal oscillator Y1 via resistor OR. The XTAL1_16M pin is connected to pin 3 of crystal oscillator Y1. Pin 1 of crystal oscillator Y1 is grounded via capacitor C158. Pin 3 of crystal oscillator Y1 is grounded via capacitor C159. Pins 2 and 4 of crystal oscillator Y1 are directly grounded. Resistor R181 is connected between pins 1 and 3 of crystal oscillator Y1. The OSC32_IN and OSC32_OUT pins of the STM32G0B1CBT chip are connected to pins 2 and 1 of crystal oscillator Y4, respectively. Pin 2 of crystal oscillator Y4 is grounded through capacitor C289, and pin 1 of crystal oscillator Y4 is grounded through capacitor C290. The MCU_PA_PWR_EN pin of the STM32G0B1CBT chip is connected to the base of transistor Q21 via resistor R379. The base of transistor Q21 is grounded via resistor R380, and the emitter is grounded. The collector is connected to the gate of MOSFET Q20 via resistor R484. The source of MOSFET Q20 is connected to the power supply via ferrite bead FB37, and is also grounded via capacitor C459. The drain is connected to the power supply, and is also grounded via capacitors C457 and C458. Resistor R378 is connected between the gate and the drain. Resistor R378 is connected in parallel with capacitor C399. Resistor R377 is connected between the source and the drain.

2. The V2X scenario display circuit for a commercial vehicle according to claim 1, characterized in that It also includes a data storage unit, which is electrically connected to the display control unit, for storing historical information received by the signal receiving unit and related data processed by the display control unit.

3. The V2X scenario display circuit for a commercial vehicle according to claim 1, characterized in that The signal receiving unit includes MOSFETs Q22 and Q2. The drain of MOSFET Q22 is connected to the drain of MOSFET Q2 via a Schottky diode D8. The gate of MOSFET Q22 is grounded via a resistor R431. A capacitor C415 is connected between the source and the gate, and a resistor R428 is connected in parallel with the capacitor C415. The source of MOSFET Q22 is also connected to one end of a resistor R483 via a resistor R350. The gate of MOSFET Q2 is connected in sequence with resistors R429, ... Resistor R432 is grounded. The common terminal of resistors R429 and R432 is connected to the power supply via resistor R430. The source of MOSFET Q2 is connected to one end of resistor R483 via resistor R351. The other end of resistor R483 is connected to the power supply via resistors R300 and R302. The common terminal of resistors R300 and R302 is grounded via resistor R432. Resistors R300 and R301 form a voltage divider circuit for ADC sampling by the subsequent display control unit.

4. The V2X scenario display circuit for a commercial vehicle according to claim 1, characterized in that The display unit includes a TPS65140 chip. The VIN pin of the TPS65140 chip is grounded via capacitor C480. Capacitor C480 is connected in parallel with capacitor C47. The EN and ENR pins are connected to the power supply via resistors R564 and R565, respectively. Capacitor C81 is connected between pins C1+ and C1-. The DRV pin is connected to pin 3 of Schottky diode D27 via capacitor C482. Pin 1 of Schottky diode D27 is connected via capacitor C482. After C484, pin 2 is grounded. Pin 2 is grounded via resistors R569 and R570 and capacitor C485. The FB2 pin of the TPS65140 chip is connected to the common terminal of resistors R569 and R570. The REF pin is connected to the common terminal of resistor R570 and capacitor C485. The COMP pin is grounded via resistor R571 and capacitor C486. Inductor L19 is connected between the VIN pin and the SW pin. The SW pin is also connected to resistor R5 via Schottky diode D28. One end of resistor R574 is connected to ground via resistor R575. The common terminal of resistors R574 and R575 is connected to the power supply. Resistor R575 is connected in parallel with capacitor C490. Schottky diode D28 is also connected to one end of capacitors C489, C572, C48, and C488. The other ends of capacitors C489, R572, C48, and C488 are grounded. The other end of resistor R572 is grounded via resistor R573. Pin B1 is connected to the common terminal of resistors R572 and R573. Pin SUP is connected to the output terminal of Schottky diode D28. Capacitor C483 is connected between pins C2+ and C2-MODE. Pin OUT3 is connected to one end of resistor R566 and capacitor C491. The other end of resistor R566 is grounded through resistor R567. The other end of capacitor C491 is grounded. Pin FB3 is connected between resistors R566 and R567. Pin PG is connected to the power supply terminal.

5. The V2X scenario display circuit for a commercial vehicle according to claim 1, characterized in that The voice unit includes an HT8693 chip. The ABD pin of the HT8693 chip is connected to the MCU_ABD pin of the STM32G0B1CBT chip via resistor R413. The ABD pin is also grounded via resistor R422. The CTRL pin is grounded via resistor R325. The OUT+ pin is connected to the VDD pin via resistor R411 and diode D21. The OUT- pin is connected to the power supply via resistor R412 and diode D22. The outputs of diodes D21 and D22 are also grounded via capacitor C454. Capacitor C454 is connected in parallel with capacitors C455 and C456. The OUT+ pin is also grounded via resistor R411 and capacitor C260. The OUT- pin is also grounded via resistor R412 and capacitor C260. 59 is grounded. The VDD pin is connected to the drain of MOSFET Q20 via ferrite bead FB37. The gate of MOSFET Q20 is connected to the collector of transistor Q21 via resistor R484. The emitter of transistor Q21 is grounded. The collector is connected to the MCU_PA_PWR_EN pin of STM32G0B1CBT chip via resistor R379. The source of MOSFET Q20 is connected to the power supply. The source of MOSFET Q20 is also grounded via capacitors C457 and C458. Resistor R377 is connected between the source and drain of MOSFET Q20, and resistor R378 is connected between the source and gate. Resistor R378 is connected in parallel with capacitor C399. The common terminal of MOSFET Q20 and ferrite bead FB37 is grounded via capacitor C459.

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